Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New virtual reality array allows immersive experience without the disorienting 3-D goggles

13.05.2003


The University of Pennsylvania has installed a virtual reality system that allows a participant full-body interaction with a virtual environment without the hassle of bulky, dizzying 3-D glasses. The system will be demonstrated for journalists and others Thursday, May 15.



Key to the installation, dubbed LiveActor, is the pairing of an optical motion capture system to monitor the body’s movements with a stereo projection system to immerse users in a virtual environment. The combination lets users interact with characters embedded within virtual worlds.

"Traditional virtual reality experiences offer limited simulations and interactions through tracking of a few sensors mounted on the body," said Norman I. Badler, professor of computer and information science and director of Penn’s Center for Human Modeling and Simulation. "LiveActor permits whole-body tracking and doesn’t require clunky 3-D goggles, resulting in a more realistic experience."


LiveActor users wear a special suit that positions 30 sensors on different parts of the body. As the system tracks the movement of these sensors as an actor moves around a stage roughly 10 feet by 20 feet in size, a virtual character -- such as a dancing, computer-generated Ben Franklin, Penn’s founder -- can recreate the user’s movements with great precision and without a noticeable time lag. The system can also project images onto the array of screens surrounding the LiveActor stage, allowing users to interact with a bevy of virtual environments.

LiveActor’s creators envision an array of applications and plan to make the system available to companies and researchers. Undergraduates have already used LiveActor to create a startlingly realistic but completely imaginary 3-D chapel. The array could be used to generate footage of virtual characters in movies, sidestepping arduous frame-by-frame drawing. LiveActor could also help those with post-traumatic stress disorder face their fears in a comfortable, controlled environment.

"The system is much more than the sum of its parts," Badler said. "Motion capture has traditionally been used for animation, game development and human performance analysis, but with LiveActor users can delve deeper into virtual worlds. The system affords a richer set of interactions with both characters and objects in the virtual environment."

While stereo projection systems have in the past been limited to relatively static observation and navigation -- such as architectural walk-throughs, games and medical visualizations -- LiveActor can be used to simulate nearly any environment or circumstance, chart user reactions and train users to behave in new ways. Unlike actual humans, virtual characters can be scripted to behave consistently in a certain way.


LiveActor was made possible through a grant from the National Science Foundation with matching funding by Penn’s School of Engineering and Applied Science, as well as equipment grants from Ascension Technology Corporation and EON Reality.

Steve Bradt | EurekAlert!
Further information:
http://www.upenn.edu/

More articles from Communications Media:

nachricht More focus and comfort at telephone workstations
20.02.2020 | Fraunhofer-Institut für Digitale Medientechnologie IDMT

nachricht New cruise ship “Mein Schiff 1” features Fraunhofer 3D sound on board
05.09.2018 | Fraunhofer-Institut für Digitale Medientechnologie IDMT

All articles from Communications Media >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Biotechnology: Triggered by light, a novel way to switch on an enzyme

In living cells, enzymes drive biochemical metabolic processes enabling reactions to take place efficiently. It is this very ability which allows them to be used as catalysts in biotechnology, for example to create chemical products such as pharmaceutics. Researchers now identified an enzyme that, when illuminated with blue light, becomes catalytically active and initiates a reaction that was previously unknown in enzymatics. The study was published in "Nature Communications".

Enzymes: they are the central drivers for biochemical metabolic processes in every living cell, enabling reactions to take place efficiently. It is this very...

Im Focus: New double-contrast technique picks up small tumors on MRI

Early detection of tumors is extremely important in treating cancer. A new technique developed by researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The work is published May 25 in the journal Nature Nanotechnology.

researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from...

Im Focus: I-call - When microimplants communicate with each other / Innovation driver digitization - "Smart Health“

Microelectronics as a key technology enables numerous innovations in the field of intelligent medical technology. The Fraunhofer Institute for Biomedical Engineering IBMT coordinates the BMBF cooperative project "I-call" realizing the first electronic system for ultrasound-based, safe and interference-resistant data transmission between implants in the human body.

When microelectronic systems are used for medical applications, they have to meet high requirements in terms of biocompatibility, reliability, energy...

Im Focus: When predictions of theoretical chemists become reality

Thomas Heine, Professor of Theoretical Chemistry at TU Dresden, together with his team, first predicted a topological 2D polymer in 2019. Only one year later, an international team led by Italian researchers was able to synthesize these materials and experimentally prove their topological properties. For the renowned journal Nature Materials, this was the occasion to invite Thomas Heine to a News and Views article, which was published this week. Under the title "Making 2D Topological Polymers a reality" Prof. Heine describes how his theory became a reality.

Ultrathin materials are extremely interesting as building blocks for next generation nano electronic devices, as it is much easier to make circuits and other...

Im Focus: Rolling into the deep

Scientists took a leukocyte as the blueprint and developed a microrobot that has the size, shape and moving capabilities of a white blood cell. Simulating a blood vessel in a laboratory setting, they succeeded in magnetically navigating the ball-shaped microroller through this dynamic and dense environment. The drug-delivery vehicle withstood the simulated blood flow, pushing the developments in targeted drug delivery a step further: inside the body, there is no better access route to all tissues and organs than the circulatory system. A robot that could actually travel through this finely woven web would revolutionize the minimally-invasive treatment of illnesses.

A team of scientists from the Max Planck Institute for Intelligent Systems (MPI-IS) in Stuttgart invented a tiny microrobot that resembles a white blood cell...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Dresden Nexus Conference 2020: Same Time, Virtual Format, Registration Opened

19.05.2020 | Event News

Aachen Machine Tool Colloquium AWK'21 will take place on June 10 and 11, 2021

07.04.2020 | Event News

International Coral Reef Symposium in Bremen Postponed by a Year

06.04.2020 | Event News

 
Latest News

Black nitrogen: Bayreuth researchers discover new high-pressure material and solve a puzzle of the periodic table

29.05.2020 | Materials Sciences

Argonne researchers create active material out of microscopic spinning particles

29.05.2020 | Materials Sciences

Smart windows that self-illuminate on rainy days

29.05.2020 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>